<template>
  <div style="border: 1px solid #ccc">
    <Toolbar
      style="border-bottom: 1px solid #ccc"
      :editor="editorRef"
      :defaultConfig="toolbarConfig"
      :mode="mode"
    />
    <Editor
      style="height: 300px; width: 100%; overflow-y: hidden"
      v-model="valueHtml"
      :defaultConfig="editorConfig"
      :mode="mode"
      @onCreated="handleCreated"
      @onChange="handleChange"
    />
  </div>
</template>
<script lang="ts">
import "@wangeditor/editor/dist/css/style.css"; // 引入 css
import { onBeforeUnmount, ref, shallowRef, onMounted, watch } from "vue";
import { Editor, Toolbar } from "@wangeditor/editor-for-vue";
import { IDomEditor } from "@wangeditor/editor";
import { debounce } from "lodash-es";

export default {
  components: { Editor, Toolbar },
  props: {
    value: {
      type: String,
      default: "",
    },
    defaultValue: {
      type: String,
      default: "",
    },
  },
  emits: ["update:value"],
  setup(props, { emit }) {
    // 编辑器实例，必须用 shallowRef
    const editorRef = shallowRef();

    // 内容 HTML
    const valueHtml = ref<string>("");

    const toolbarConfig = {};
    const editorConfig = { placeholder: "请输入内容..." };

    // 组件销毁时，也及时销毁编辑器
    onBeforeUnmount(() => {
      const editor = editorRef.value;
      if (editor == null) return;
      editor.destroy();
    });

    const handleCreated = (editor) => {
      editorRef.value = editor; // 记录 editor 实例，重要！
    };

    const handleChange = debounce(function (editor: IDomEditor) {
      emit("update:value", editor.getHtml());
    }, 500);

    watch(
      () => props.defaultValue,
      (val) => {
        valueHtml.value = val;
      },
      {
        immediate: true,
      }
    );

    return {
      editorRef,
      valueHtml,
      mode: "default", // 或 'simple'
      toolbarConfig,
      editorConfig,
      handleCreated,
      handleChange,
    };
  },
};
</script>
